• n3 MEMBERS 15,214.00
  • MONEY SAVED $65,000,000*

Welcome Registered Master Builder Member

Start reducing your business costs today


Registered Master Builders and n3 have teamed up to give your business great discounts at New Zealand’s leading Suppliers. In the last year alone, Registered Master Builder Members have saved over $4.7 million* utilising n3 Suppliers.

This was primarily in Building Suppliers, Safety Equipment, Plumbing Supplies and Fuel.

n3 is a business buying network with over 15,000 Members. They are dedicated to making it simple for Kiwi businesses to save money across all areas of day-to-day business.

Plus, your n3 membership fee is fully covered by RMBA, it is free to you as a Member.

To get started, follow these 3 easy steps

  1. Complete the 'Get started now!' form to activate your n3 membership.
  2. Tick ‘Yes, send me a Trade Card’ box to gain access to discounts for business purchases.
  3. Tick ‘Yes, I want to set up Supplier Accounts’ box to gain access to On-Account discounts. Click here to view a full list of Suppliers.

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Get started now!

Terms and Conditions
Trade Card
Supplier Accounts


Key Suppliers for RMBA Members



n3 offers the convenient choice of three Fuel Cards, so you can choose the option that will best suit your business.

Things to consider when choosing a Fuel Card for your business:

  • Do you require access to truck stops?
  • What is the location and distribution of stations/truck stops?
  • Is convenience a factor?
  • What discount is available to you?
  • Does your organisation require spend limits?
  • Would you like to have a restriction on purchases (such as food and drinks)?



We are proud to offer three Fuel Cards at n3 pricing:




  • Mobilcard can be used at 337 sites across the country
  • Discounts with Mobilcard at 298 sites including
    - all Mobil sites,
    - selected Allied Petroleum, NPD & Waitomo Petroleum sites
  • Mobilcard is accepted at 39 convenience sites (no discount)
  • No card or transaction fees
Z Energy


Z Business

  • Discounted fuel at 550 service stations and truck stops nationwide
  • Discount available at Z, Caltex, and Challenge service stations and truck stops
  • No card or transaction fees


BP & Gasoline Alley

  • Excellent Coverage with 250+ BP stations
  • Discounts also available at 100+ Gasoline Alley stations & 17 RD Petroleum sites
  • No card or transaction fees



Safety Equipment, Building and Plumbing Supplies

Your business can reduce costs with a wide range of Suppliers, from Safety Equipment to Building and Plumbing supplies.

We are able to offer discounts at the following suppliers:

A typical n3 Member saves 17%*
A typical n3 Member saves 18%*
A typical n3 Member saves 21%*
A typical n3 Member saves 24%*
NZ Safety Blackwoods
A typical n3 Member saves 33%*
A typical n3 Member saves 12%*
A typical n3 Member saves 44%*
Plumbing World
A typical n3 Member saves 25%*




More n3 Suppliers

You can purchase on-account with as many of our Suppliers as you like – the more you use the more you will save.



$22,468 saved

Southern Cross Produce

"As a business owner, you’re constantly analysing your costs and looking for the best deals available. I've found n3 is a simple way of reducing business costs and once we had our suppliers set up with n3, it was painless to operate and no effort to manage. Saving us time and money"

Read more ›

$22,929 saved

Texture Group

"Using n3 is a simple way for us to save money on materials we need for our landscape construction projects. One the best things we find is all the work and negotiating with suppliers is done for us - saving us time and money."

Read more ›


How do I trade with n3?

There are two simple ways to trade and save on business costs with n3's Suppliers.

On Account
Trade with Suppliers now.
Recieve a monthly invoice.
  • Business use
  • 60+ Suppliers
  • Pay via monthly invoicing
  • Free monthly reporting
Find Out More ›
Trade Card
Pay cash/EFTPOS for goods.
Get discounts on the go.
  • Business use
  • Selected Suppliers
  • Pay cash/card at checkout
  • App for iOS & Android
Find out more ›

When you join n3, you’re joining a buying group with over 15,000 other Kiwi businesses. That's a lot of negotiating strength.

We call it business buying power – you can call it getting more for less.

Watch the video





The cost of membership is based on the size of your business and is paid on an annual basis. It is a small portion of the level of savings you will receive as an n3 Member. If you’re part of an association, your membership fee may already be covered.

As an n3 Member you will have access to 60+ Suppliers. We have Suppliers in a wide range of categories that can provide you with goods and services including but not limited to stationery, gas, worksafe training, chemicals, hygiene, building supplies and materials, accountancy, safety equipment, tyres, glass, technology, furniture, maintenance supplies, fuel and more.

Your membership includes access to the following:

  • Discounts for business purchases through On Account trading and Trade Card for cash purchases
  • Monthly reporting of your spend and save figures
  • Dedicated n3 account manager
  • Website access to manage your membership

The Trade Card is only to be used for business purchases.

Let us know who your current Suppliers are – we might already have contracts with them. If we do, we can compare n3 pricing to your current pricing, and we will only link your account if it is beneficial and you will get a better deal. If we don’t have a contract with your current Supplier we may be able to provide an alternative n3 Supplier that you can trade with.

Once you open or link an account with an n3 Supplier you deal with them directly. Your n3 discounts will be automatically applied by the Supplier and you will receive a monthly invoice directly from each Supplier for the goods and services you have purchased. It couldn’t be easier!

Absolutely – we’re always here to help. Email ask@n3.co.nz with your questions and we'll get back to you as soon as we can, or phone 0508 20 30 40 to speak to the n3 team.


* The savings shown are based on average active trading association member savings in 2019.